Plegridy (peginterferon beta 1a)

Plegridy is a disease modifying drug for relapsing remitting MS. it is given an injection that you inject into yourself every two weeks. it is supplied in single-use, pre-filled injection pens. You MS Nurse will give you full training on how to do this. To give your body a chance to get used to Plegridy and reduce the impact of side effects, you start on low doses for the first two injections, increasing to the full dose with the third injection.

Side Effects

Common side effect may include

  • flu-like symptoms
  • headache
  • injection site reactions
  • blood cell abnormalities
  • feeling weak or tired
  • difficulty sleeping
  • diarrhoea, nausea and vomiting
  • muscular or joint pain
  • infections

Less common side effects may include

  • changes in menstruation (periods)
  • neurological symptoms, mood changes, depression
  • liver abnormalities
  • allergic reactions
  • heart problems and hypertension
  • damage to small blood vessels leading to kidney problems

A full list of side effects is included in the manufacturer’s Patient Information Leaflet

What Plegridy Patients Say